Nis

Nis, formerly known as Naissus, is the third largest city in Serbia. It was founded by the Celtic Scordisci in 279 BC, and it became a crossroads of the East and West. It was occupied by the Roman Republic in 73 BC, and the Romans set up a legionary camp in the city. It became an important garrison and market town in Moesia, and it became the birthplace of the Roman emperors Constantine the Great, Constantius III, and Justin I, earning it the nickname "The Emperor's City". After 400 years of Ottoman rule, it was liberated in 1878 and became part of the Principality of Serbia. It is now one of the most important economic centers in Serbia, especially in the electronics, mechanical engineering, textile, and tobacco industries. In 2011, Nis had a population of 245,369 people.